Vetter S.Tec Lifting bags 10 bar (145 psi) - Manual (Page 8)

Vetter S.Tec Bags 10 bar
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In case the lifting height of an S.Tec Bag is not sufficient then a
maximum of 2 bags can be placed over each other. In this mode,
the lifting height is additive for both S.Tec Bags.
However the lifting power only corresponds to that of the smaller
bag. Basically, the lower bag should always be inflated first.
Sequence: large bag below,
small bag on top!
Never place 3 or more bags over each other!
An S.Tec Bag under load can be compared to a spring under ten-
sion with respect to its behavour. As soon as the S.Tec Bag is sud-
denly released, e.g. by slipping, load break or anything similar then
there will be spontaneous catapulting outwards of the S.Tec Bag.
Never stand in front of the S.Tec Bag!
This is an area of danger!
2.5 Correct usage
First and formost, S.Tec Bags are pneumatic rescue devices for re-
scue services (fire services) in which trapped persons can be freed
and access can be obtained for rescue and carrying our counter-
measures as well as other similar measures. In addition to this
S.Tec Bags can be used as working equipment for lifting or mo-
vement of loads. S.Tec Bags are subject to national requirements
of the fire service sector. Further instruction information can be
obtained from the operating instructions of the user. The comple-
te S.Tec system is cold-resistant to -20 °C and heat-resistant up to
+55 °C.
2.6 Safety instructions
Pre-specified personal protective clothing is to be worn during
operation! For example: protective clothing, helmet, protective
gloves, protection for eyes and face, noise protection etc.
The national regulations in connection with lifting bag systems and
their use are to be observed. For example: DIN EN 13731, national
regulations. The S.Tec Bags are only to be used with compressed
air, under no circumstances are they to be used with inflammable
gases or aggressively acting gases. Vetter S.Tec Bags are only to be
inflated with original Vetter inflation fittings because these were
subjected to an acceptance test by the manufacturer. The lifting
bag system is to be tested for perfect condition before and after
use (specifications from the manufacturer, national regulations).
The lifted load is to be continually supported during the proges-
sive lifting sequence. The stable condition of foundation support
material must always be observed during construction of the
foundation support.